libgimp: Fix PDB parameter descriptions for int and double types
requested to merge kamilburda/gimp:wip/kamilburda/fix-pdb-param-description-for-int-and-double into master
After this change, the description of PDB parameters and return values no longer includes minimum and maximum int and double values, which could look confusing for users. For example, the width return value for the gimp-brush-get-info procedure now displays The brush width (default 0) instead of The brush width (width >= -2147483648, default 0).
Come to think of it, though, default values should probably be displayed for parameters only and not for return values. Only value ranges (if not equal to minimum/maximum value possible for a particular type) should be displayed both for parameters and return values.
Edited by Kamil Burda